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1,4-Dihydroxy-quinoxaline-2,3(1H,4H)-dione.

ABSTRACT: The asymmetric unit of the title compound, C(8)H(6)N(2)O(4), contains one half-mol-ecule; a twofold rotation axis bisects the molecule. The quinoxaline ring is planar, which can be attributed to electron delocalization. In the crystal structure, inter-molecular O-H?O hydrogen bonds link the mol-ecules into R(2) (2)(10) motifs, leading to layers, which inter-act via phen-yl-phenyl inter-actions (C?C distances in the range 3.238-3.521?Å).

SUBMITTER: Abu-El-Halawah R

PROVIDER: S-EPMC2960817 | biostudies-other | 2008

REPOSITORIES: biostudies-other

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1,4-Dihydroxy-quinoxaline-2,3(1H,4H)-dione.

Abu-El-Halawah Rajab R Ali Basem Fares BF Ibrahim Mohammad M MM Zahra Jalal A JA Frey Wolfgang W

Acta crystallographica. Section E, Structure reports online 20080208 Pt 3

The asymmetric unit of the title compound, C(8)H(6)N(2)O(4), contains one half-mol-ecule; a twofold rotation axis bisects the molecule. The quinoxaline ring is planar, which can be attributed to electron delocalization. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into R(2) (2)(10) motifs, leading to layers, which inter-act via phen-yl-phenyl inter-actions (C⋯C distances in the range 3.238-3.521 Å). ...[more]

PMID: 21201914

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